Gas-stove.



No. 7|0,053. Patented Sept. 30, |92` M. GmswoLn, 1n. GAS sTovE.

(Application filed July 23, 1901.)

(No Model.)

M 72655252 Izzyen to?? i To @ZZ-whom, it may concern:

UNITED STATES PATnNT @Prion MATTHEW GRIswoLD,r JR.

, F ERIE, PENNSYLVANIA.

GAs-sTovE.

SPECIFICATION forming part of Letters PatentNo. 710,053, datedseptember'eo, 1902.

Application filed July 2 3. 1901.

' Be it known that I, MATTHEW GaiswoLD, Jr., a citizen of the UnitedStates, residing at Erie, in the county of Eriet-and State ofPennsylvania, haveinvented certain new and useful Improvements inGas-Stoves; and I do hereby declare the following to bea full, clear,and exact ,description of the invention, suoli as will enable othersskilled in the art to whichv it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters ofreference marked.

thereon, forming part of this specification.

Myuinvention relates to improvements in gas-stoves; and it consistssubstantially in making the stove with acent ral air-line which extendsup through the lire-box of the stove and opens into a heating-chamberprovided with a bathe-plate or dellector and a central air-Hue above theheating-cham bersurrounded by asmoke-flue. These and other features ofmy invention are hereinafter set forth, and

illustrated in the accompanying drawings, in'

which- Figure l shows a vertical central section of my improvedgas-stove. Fig. 2 shows anti-ansverse section of the same on the line @c@o in Fig. l.

In the drawings thus illustrating my invention, Ais1 he base of thestove, supported upon legs A in the usual manner. The central part ofthe base A is cut away, and to'inwardlyprojecting lugs-ft I secure acircular gasburner B, provided with peripheral lugs b, adapted to bebolted to' the lugs d on the base arms b'. Upon the periphery of thebase A I place thelire-box C, and to the lugs b on .the burnerl'I securethe lower end of anV air-flue D, and in the lower partof the reboxC, Iplace a basket-grate E, 'which is supported by means-of lugs e,extending to 'and contacting with the corners c of the fire-box shellC', and lugs d on the lower portion of the air-flue D.- Upon the top 'ofthe air-fine D, I secure a heating-chamberfF, the lower half F thereofresting upon the .top of` the air-ue D and the upper hali` thereof, F2,resting in a groove'f in the periphery of the lower semi No. 69,345. in@model.)

hall' F' of the heating-cham ber F, and between the two halves of theheating-chamber F there is secured a baflie-plate G by means ofperipheral lugs g thereon entering slots between thet wo halves F and F2of the heating-chamber F, so that with the exception of the spaceoccupied by the lugs g thereon there is a continuous peripheralopeningaround the edge of thebafle-plate G for the passage of air upward fromthe lower part of the heatingchamber. It will also be observed that bymeans of this Construction the heating-chamber is entirely supportedupon the air-flue D and a clear space left entirely around it betweenits periphery and the inside of the shell G of the {ire-box C for theescape of the products of combustion from the fire-box C. Upon the topF2 of the heating-chamber F, I place an air-flue H, which connects withthe heating-chamber by means of a central openingf through the top F2 ofthe heating-chamber- This air-flue H extends up to the stove-top I anddischarges the heated air therefrom through openings `1l therein. On thetop of the fire-box C', I place a smoke-flue J, which extends up to thestove-top I and entirely surrounds the air-flue H, so as to leave anarrow annular spa-ce K between said outer ue J and the inner air-fineH, through which the smoke and products of combustion pass up around theheating-chamber F and pass lto a pipe-thimble L on one sideof the upperpart of the flue J. In thisconstruction it will be observed that Iutilize the heat both to heat air passing up through the central flue,rbut also utilize itfor direct radiationvto the greatestextent possible.

Having thus described my-inventiomso as to enable others to constructand use the same, what I claim as new, and desire to secure by LettersPatentof theUnited States, is-

In a gas-stove, the combination 0f a. base, aV

chamber resting upon and supported by said flue so as to leave anannular space between it and the shell of the lire-box, a baille-platein said heating-chamber having an annular opening around its periphery,an air-flue on the top of said heating-chamber discharging throughopenings in the Istove-top, and a smoke-Hue resting upon the top of the`hell 0f the fire-box and surrounding:r the air-flue above theheating-chamber, substantially as set forth. m

In testimony whereof I aiix my signature in presence of two witnesses.

MATTHEW GRISWOLD, JR. Witnesses:

W. P. GIFFORD, H. M. STURGEON.

